Stephen Newell
Well-known Member
Not sure yet but I think the thermostat when out on my 93 G20 chev van. It managed to overheat so I pulled off the road and it died. Then I let it sit for over an hour to cool while I had someone bring some water and antifreeze. Then I refilled the coolant and went to drive it home and it blew a very thick white cloud of smoke for the first ten miles and also the engine ran rough. Then before I went the next 15 miles home the smoke quit and the engine started running better with the exception of more valve clatter than it already had. After it sat for a while again I checked the engine oil for water and there wasn't any on the stick but after wiping the stick to get the oil off it didn't have enough oil to read. I just topped off the oil a couple days ago and it hasn't been using oil. In the morning when it cools completely I will start the engine and see what happens. I can understand the thermostat purging the engine of coolant but I don't understand the oil too. Thoughts?